feat: add device_target config and set default to Ascend. #1146

	# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: CI

	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "main" ]

	permissions:
	contents: read

	jobs:
	build:

	strategy:
	matrix:
	os: [ubuntu-latest]
	python-version: ["3.7", "3.8", "3.9"]
	include:
	- os: macos-latest
	python-version: "3.8"
	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements/dev.txt
	pip install "Pillow==9.1.1"
	# MindSpore must be installed following the instruction from official web, but not from pypi.
	# That's why we exclude mindspore from requirements.txt. Does this work?
	pip install "mindspore>=1.8"
	- name: Lint with pre-commit
	uses: pre-commit/[email protected]
	- name: Test with pytest (UT)
	run: \|
	pytest tests/modules/*.py
	- name: Test with pytest (ST)
	run: \|
	pytest tests/tasks/*.py

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